Improvement in mortising-machinej



@einen gieten gamut @ffice JOSEPH A. PEABODY, 0F'PHILADELPHIA,PENNSYLVANIA.

Letters Patent F0. 81,286, dated August 18, 1868.

IMPROVEMENT IN MORTIS'ING-MAGHINBS.

'6511: .Stigaule referrer tu in these Petters @anni mit mixing ym oftige sami.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOSEPH A. PEABODY, of the city of Philadelphia,county of Philadelphia, and State of Pennsylvania, have. invented a newand useful Improvement in Mortising-Machincsg'and I do hereby declarethat the following is a full, clear, andexact deseription'of theconstruction and operation of the same, reference being bad to theaccompanying drawings, making a part of this specification, in whichpFigure 1 is o side elevation.

Figure 21's a top view oi' same. Y n This is an improvement on themortising-machinc patented by me, July 17, 1855, in which a swingingbar, N, is applied to the front ofthe frame A A, and is kept in positionsidewise bj: the stands A2 A?, and is allowed to swing up and down on'the arms O. These arms have several holes formed in them, to adjust themovement of the barN, so as to give any angle to the 'mortisc. By thisarrangement thc bar N cannot be raised or lowered on a vertical line,neither can it be moved on a horizontal line.

The object oi' thc present improvement is to dispense with the barN andlever for operating the same, andsubstitute a movable table, and inplace of the arms 0, regulators, arranged and operating as hereinafterdescribed, so that I am enabled to render my-mortising-maehineself-operating.

To enable others skilled in the art to malte and use my invention, Iwill now proceed to describe its'construction and operation. l

I-construct, on the side of the frame A of my mortising-machine, amovable table, B, witha iiat top. On the side ot' said table, and nearthe'ends, are cut circular openings, provided with an offset or flange,in which are placed metallic rings R and R', the insides of which aremade with flanges, as shown in tig. 2. The rings R and R' are secured inthe openings by means of pins passing through the sides.l Fitting in andresting on the laug'es of the rings R and It', are circularvplates P andP', said piates being madewith rectangular slots S and S', in thecentre. On the outer edge of the plates are made square or roundopenings, in which are inserted bolts b, b1, bdand b3, the headsAof-which catch on the under side of the langes of rings R and R', and lthe opposite ends project out through the plates P and I, and areprovided with nuts or thumb-screws, passing through the rectangularslots S and S; and secured to the side of the frame, are long screws Cand C. 0n each side of the rectangular slots S and S are made openings,of any desired form, for the purpose of turning tllc plates in thedirection desired. I

The operation of my invention is as follows L I connect, to thecrank-pin of the crank,vK, a rod'or lever, L, provided with a slot, (ofsuiicient length to suit the throw ef the crauk,) in which .thecrank-pin works. The upper end of the rod or lever L has its fuleruxnsecured to theside of the frame A. The table B is connected to the rodor lever by means of the rod T, so that when power is applied to thecrank, K, motion will be communicated to the table, and move it in thedirection according to the adjustment ofthe regulators. v

The material to be mortised is placed on und, secured to 'the top of'the table B. .Now, if it is desired to make a right or lcft-hand mortiseon a certain angle, the set-screws b, b, b, and b3, of the regulatorsare slacked up, and the plates I and P are turned aroundnntil tbe centre.slots S andS' assume the position required; the set-screws I) bl L: barenow tightened up, and thus holding the plates P and P' in a iii-mposition in the rings R and R. When motion is gvcmto the table B, itwill be guided on the stationary screws C and C', in whatever directionthe regulators may be placed. l

In order to make a long mortise, the regulators are turned until thecentre slots S and Sassume a horizontal position, so that when motion isgiven to the table B, it will move in :s directionv parallel to theframe A. The table B may also be moved on a vertical line bydisconnecting the rod T, and connecting the centre of the table B, atthe lower edge, to. the crank-pin by means` of a short rod. In this casethe centre slots S und S of the regulators must be placed in a verticalposition.

Having thus described my invention, its construction and operation,wbatI claim, and desire to secure by Letters Patent, is

l The regulators, composed of rings R and R', plates P and I", withslots S and S', bolts b, b, b', and 3,

screws C and C', substantially in the manner and for the purposespecified.

i OSEPH A. PEABODY.

Witnesses:

IsAAc R. Osmose, p CHARLES H. EVANS.

